Company lists · Data refreshed September 2026

Top 25 Intervention services based in Canada

RevenueBase identified 300 intervention services headquartered in Canada as of September 2026 and tracks 6,983 professional contacts across them, including 2,459 with verified work emails. Toronto is the largest hub.

This list covers intervention services headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
300Companies
6,983Contacts tracked
2,459Verified emails
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The 25 largest intervention services based in Canada

Ranked by team size
Top 25 of 300 intervention services based in Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to intervention services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceWhitby, ON, CanadaHQ checked Sep 20, 20261,001-5,000860 contacts →

Indirect evidence

“Ontario Shores Centre for Mental Health Sciences is a leader in mental health care, providing a spectrum of specialized assessments and treatment services for people living with…”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceVancouver, CanadaHQ checked Sep 20, 2026501-1,000321 contacts →

Indirect evidence

“Embarking on the road to recovery from mental illness is a deeply personal decision followed by an equally personal process.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceCalgary, AB, CanadaHQ checked Sep 20, 2026501-1,000290 contacts →

Indirect evidence

“Hull Services has long had a reputation for providing leading edge child, youth, and family mental health services.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceSurrey, BC, CanadaHQ checked Sep 20, 2026501-1,000241 contacts →

Indirect evidence

“Milieu strives to provide meaningful & inclusive supports for adults and youth, many of which have developmental disabilities, mental health and require trauma related supports.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceBurnaby, BC, CanadaHQ checked Sep 20, 2026201-500236 contacts →

Indirect evidence

“Monarch House was established in 2009 in British Columbia as an interdisciplinary treatment centre for individuals with autism spectrum disorder (ASD) and their families.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceScarborough, ON, CanadaHQ checked Sep 20, 2026201-500213 contacts →

Indirect evidence

“Strides Toronto is a multi-service agency providing services to young people from birth to age 29 and their families in East Toronto.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSaskatoon, SK, CanadaHQ checked Sep 20, 202651-200199 contacts →

Indirect evidence

“TinyEYE Therapy Services is your trusted provider of special education and care solutions - founded on empathy, defined by impact.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceEtobicoke, ON, CanadaHQ checked Sep 20, 2026201-500180 contacts →

Indirect evidence

“Our Service Philosophy wm+a has a service philosophy this is client centred and client focused and believes in developing working and learning partnerships within our community to…”

Source: RevenueBase Database · checked Sep 20, 2026
9Strong evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-200174 contacts →

Strong evidence

“Geneva Centre for Autism is an international leader in the development and delivery of clinical intervention services and training.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceBurnaby, BC, CanadaHQ checked Sep 20, 2026501-1,000154 contacts →

Indirect evidence

“posAbilities supports individuals of all ages with developmental disabilities.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-200128 contacts →

Indirect evidence

“Established in 1969, Youthdale is one of the founding members of the children's mental health movement in Ontario.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceBurlington, ON, CanadaHQ checked Sep 20, 202651-200121 contacts →

Indirect evidence

“Woodview's mission is to provide inclusive and person-centered mental health, autism, and developmental services and supports in partnership with children, youth, adults, and…”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceCalgary, AB, CanadaHQ checked Sep 20, 202651-200109 contacts →

Indirect evidence

“Enviros is a diverse not-for-profit social services agency.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceAurora, ON, CanadaHQ checked Sep 20, 202651-200105 contacts →

Indirect evidence

“York Hills is the largest children and youth mental health agency in the York Region and has expertise in treating children, youth, and families' social, emotional and behavioural…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceSurrey, BC, CanadaHQ checked Sep 20, 202651-200103 contacts →

Indirect evidence

“Pivot Point is a social service agency for children and adults with diverse abilities throughout BC.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceAurora, ON, CanadaHQ checked Sep 20, 2026201-500100 contacts →

Indirect evidence

“Your Support Services Network (YSSN) is a hub for Developmental, Mental Health and Children’s Services that helps people navigate services to live their best lives.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceBarrie, ON, CanadaHQ checked Sep 20, 202651-20075 contacts →

Indirect evidence

“Catulpa Community Support Services is a FOCUS accredited, registered nonprofit agency serving children, youth, adults and families with special or unique needs in The County of…”

Source: RevenueBase Database · checked Sep 20, 2026
18Strong evidenceOttawa, ON, CanadaHQ checked Sep 20, 202651-20072 contacts →

Strong evidence

“ACT Learning Centre is a therapy centre founded to provide evidence-based, innovative and leading-edge assessment and intervention for children and youth.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceGuelph, ON, CanadaHQ checked Sep 20, 202611-5069 contacts →

Indirect evidence

“Compass Community Services is a premier provider of exceptional, yet affordable, services in the community for over 55 years since it's original inception.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5064 contacts →

Indirect evidence

“At Progress Place we believe that recovery from mental illness is possible when it involves the individual in a community – one that offers hope, respect, and opportunities for…”

Source: RevenueBase Database · checked Sep 20, 2026
21Strong evidenceMontreal, QC, CanadaHQ checked Sep 20, 202611-5061 contacts →

Strong evidence

“At The Donald Berman YALDEI Developmental Center, we provide Early Intervention treatment and specialized therapies to children with developmental needs from birth to 18 years.”

Source: RevenueBase Database · checked Sep 20, 2026
22Strong evidenceHamilton, ON, CanadaHQ checked Sep 20, 202651-20057 contacts →

Strong evidence

“Behaviour Innovations offers a range of services including home and centre-based Intense Behaviour Intervention, behaviour support, and more.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-20052 contacts →

Indirect evidence

“Madison Community Services exists to promote the health, recovery and community integration of persons with mental health challenges through advocacy, education and the provision…”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceSydney, NS, CanadaHQ checked Sep 20, 202651-20047 contacts →

Indirect evidence

“Cape Breton Community Housing Association provides residential services and rehabilitative programs for persons with mental illness.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceLondon, ON, CanadaHQ checked Sep 20, 202651-20044 contacts →

Indirect evidence

“For over 80 years, Family Service Thames Valley has offered counselling and support services to families, parents, and children.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 300 intervention services based in Canada

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Intervention services based in Canada at a glance

As of Sep 20, 2026
35.2%Verified-email coverage
23.3Average contacts per company
11-50Median size (employees)
10.3%Largest-city concentration · Toronto
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
143
11-50
88
51-200
47
201-500
8
501-1,000
8
1,001-5,000
3
10001+
1

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 300 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among intervention services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Canada whose own description of what they do matches “intervention services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names intervention services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among intervention services, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 2,459 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Intervention services by metro

  • Intervention services in Toronto31

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names intervention services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many intervention services are there based in Canada?

RevenueBase identified 300 intervention services headquartered in Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Ontario Shores Centre For Mental Health Sciences, headquartered in Whitby, tops this list with the largest team on record.

Which city has the most intervention services?

Toronto leads with 31 headquartered companies, followed by Calgary (20) and Montreal (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,459 verified decision-maker contacts tracked across these 300 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.